G Series

The HeatMasterss G Series is widely recognized as the flagship furnace of the industry. It was one of the first to meet and then surpass all EPA emission standards. With world class engineering and thorough field testing, the G Series has become the easiest to maintain and most user friendly ultra high efficiency furnace available today. The G and GS Series have now been combined into one standard model. Build Your Own Furnace with the features and options that meet your needs and budget!

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GS Series

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Models

G100

The G100 is our smallest wood furnace and is perfect for a home or small outbuilding and compact enough to be easily installed indoors or in outbuildings.

  • Approx. Heating Space* 3,000sq. ft.
  • Maximum BTU's** 120,000/hr
  • 8 Hour Burn Rate 48,000 BTU/hr
  • Water Capacity (US Gallons) 90
  • Firebox (L” x W” x H”) 19 x 20 x 30
  • Firebox Door (L” x W” x H”) 16 x 16
  • Weight 1,086 lbs
  • Outlets 1 set of 1” feed and return (can be teed)
  • Chimney Size 6”
  • Dimensions*** (L” x W” x H”) 38 x 57 x 78
*Well-insulated building. **BTU’s are approximate and will vary depending on fuel quality. *** Height of the furnace is to the top of the lift hook
G200

Our top selling outdoor wood furnace using gasification technology, the G200 is a workhorse! Capable of supplying heat to a home and small shop or one large building. Ask us how the G200 can be put to work for you.

  • Approx. Heating Space* 5,000 sq. ft.*
  • Maximum BTU's** 232,000/hr
  • 8 Hour Burn Rate 112,000 BTU/hr
  • Water Capacity (US Gallons) 195
  • Firebox (L” x W” x H”) 28 x 30 x 36
  • Firebox Door (L” x W” x H”) 20 x 20
  • Weight 1,802 lbs
  • Outlets 2 sets of 1” feeds and returns
  • Chimney Size 6”
  • Dimensions*** (L” x W” x H”) 51 x 74 x 88
*Well-insulated building. **BTU’s are approximate and will vary depending on fuel quality. *** Height of the furnace is to the top of the lift hook
G400

One of the largest gasification furnaces available, the capacity of this unit makes it suitable for many large load applications. It’s capable of heating up to 4 applications at the same time, a home and large shop or a commercial sized shop. It may be all you need for multi-building, high demand applications.

  • Approx. Heating Space* 8,000sq. ft.
  • Maximum BTU's** 340,000/hr
  • 8 Hour Burn Rate 180,000 BTU/hr
  • Water Capacity (US Gallons) 260
  • Firebox (L” x W” x H”) 30 x 42 x 40
  • Firebox Door (L” x W” x H”) 20 x 20
  • Weight 2,420 lbs
  • Outlets 2 sets of 1 ½” feeds and returns
  • Chimney Size 8”
  • Dimensions*** (L” x W” x H”) 57 x 85 x 91
*Well-insulated building. **BTU’s are approximate and will vary depending on fuel quality. *** Height of the furnace is to the top of the lift hook

Four Reasons to Choose
a HeatMasterss Furnace

Easy to Use

Stay Clean While Loading

The built-in loading switch lets you enjoy clean easy loading. Simply press the switch and crack the door and the draft fan vents the smoke out the chimney.

Less Cleaning and Maintenance

The EZ Clean Handle makes cleaning the heat exchange tubes a breeze. You don’t need to brush tubes or scrape creosote, and you can clean and load your furnace in five minutes!

Less Wood Cutting

Our ultra high efficiency furnaces use up to 50% less wood than conventional furnaces, meaning you spend less time cutting wood, loading wood, and cleaning ash.

Built to Last

HeatMasterss combines the best materials with expert engineering to create the most rugged, longest lasting furnaces available. We use 409 Titanium Enhanced Stainless Steel which is the only product that provides the right blend of longevity and cost effectiveness to meet our very high standards of excellence.

Titanium Stainless Steel is the best choice for your furnace because:
  • It resists corrosion. Titanium Stainless Steel is coated with a chromium film so it will not corrode from:
    – Wet ashes or creosote in the firebox
    – Sweating on your water jacket
    – Corrosive element in your water
  • It can withstand higher continuous temperatures.
  • It transfers more heat. Heat gets to your water at a higher rate which will save you fuel.
  • It has a low Thermal Expansion Rate. It won’t crack and warp in the high heat environment.

Eliminate Your Heating Bill

Take control of your budget and eliminate your heating bill with wood heat. Fossil fuel prices fluctuate but wood heat stays inexpensive or free. You’ll feel secure when you have complete control of your heating costs. And with a HeatMasterss you’ll use less wood than competitors’ models because of our clean burning, efficient technology.

Whether you choose to finance your furnace or buy and install it yourself, you’ll be pleased with the long term savings wood heating provides.

The HeatMasterSS Advantage

G Series furnaces are built to the highest quality standards but it’s good to know that they are also backed by the best warranty in the industry. We back each furnace with our Lifetime Limited Warranty which is twice as long as the leading mild steel competitor. We also have an extensive network of professional dealers who are available to help you with expert installation, advice and after sales service.

We are confident that your G Series furnace will keep you warm for many winters to come.

Insulated Hinged Rear Door

Convenient access to furnace components.

EZ Clean Handle

Cleans heat exchange tubes quickly and easily. No brushes or tools.

Thermal Resistant Foam Board Insulation

High R Value Foam Board Reduces Condensation and Heat Loss

Optional
Recirculation Pump

Eliminates thermal layering in the water jacket.

Ultra Efficient Heat Exchange Tubes with Spiral Turbulators

Spins hot exhaust against the tubes to transfer over 85 % of the heat into the water.

Easy View Water Level Gauge

Highly visible from a distance.

Optional
Smokeless Loading

Engages fan, directing smoke up the chimney and away from you.

Loading Switch

Reduces smoke while loading wood.

Optional
Sight Glass

Sight glass in bottom door lets you see the fire in the lower combustion chamber without opening the doors.

High Efficiency Combustion Chamber Design

Horseshoe shaped refractory reflects heat back to the fire resulting in the cleanest hottest burn (up to 2000° Fahrenheit)

Insulated Hinged Rear Door

Convenient access to furnace components.

EZ Clean Handle

Cleans heat exchange tubes quickly and easily. No brushes or tools.

Thermal Resistant Foam Board Insulation

High R Value Foam Board Reduces Condensation and Heat Loss

Optional
Recirculation Pump

Eliminates thermal layering in the water jacket.

Ultra Efficient Heat Exchange Tubes with Spiral Turbulators

Spins hot exhaust against the tubes to transfer over 85 % of the heat into the water.

Easy View Water Level Gauge

Highly visible from a distance.

Optional
Smokeless Loading

Engages fan, directing smoke up the chimney and away from you.

Loading Switch

Reduces smoke while loading wood.

Optional
Sight Glass

Sight glass in bottom door lets you see the fire in the lower combustion chamber without opening the doors.

High Efficiency Combustion Chamber Design

Horseshoe shaped refractory reflects heat back to the fire resulting in the cleanest hottest burn (up to 2000° Fahrenheit)

Financing

  • Make your purchase right away and be ready for winter
  • Get online approval in minutes
  • Avoid high credit card interest
  • No hidden fees and no penalty for early payment

To Apply, Talk to Your Local Dealer